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Spanning Labs is the flexible interoperability API for Web3.0 and beyond.

This site contains API references, tutorials, and other resources for the Spanning Network.

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Common Standards

Spanning relies on the existing standards such as ERC20 and ERC721. This makes updating your code as easy as one word.


Spanning power users rejoice! You can customize large portions of the protocol to your liking.

Backwards compatibility

Spanning has ensured that the protocol is backwards compatible with existing standards. Non-Spanning users can still use the protocol.

Get Started ASAP

We know you're excited -- integrating is as easy as a few keystrokes.

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$ npm install @spanning/contracts
pragma solidity ^0.8.0;

import '@spanning/contracts/token/ERC20/SpanningERC20.sol';

contract MultiChainContract is SpanningERC20 {
    ...your code here...